4 TENTHREDINID^. 



7. Cimbex ariana. 

 (Plate I. fig. 3.) 



Exp. al. 1 poll. 2 lin., long. corp. 8 lin. 



Female. Black; antennae, j aws, tibiae, and tarsi yellow. Abdomen 

 yellow, front margin of all the segments, except the two last, black, 

 more broadly in the middle than at the sides ; under surface of 

 abdomen yellowish. Wings vitreous ; fore wings with the costal 

 half clouded with deep yellow. 



Nearest to G. axillaris, from which the black head and scapulas 

 will at once separate it, independently of other differences; but 

 much more slender than any described species of the genus. 



Hab. Forth India. 

 a ' 2 • (Type of species.) North India. Capt. Laing. 



8. Cimbex sibirica. 

 (Plate I. fig. 1.) 



Exp. al. 2 poll., long. corp. 10 lin. 



Female. Allied to G. violacea, but with the abdomen rather 

 shorter and broader. Black ; head and thorax with short bristly 

 hairs. Antennas castaneous, with the basal joint reddish brown ; 

 jaws reddish ; scapulas black, slightly edged with tawny, or wholly 

 tawny ; in the latter case there is a tawny spot on the back of the 

 head on each side, behind the eyes. Thorax sometimes edged behind 

 with tawny ; metathorax always with a small yellow depression on 

 each side. Segments 3 to 6 or 7 banded with tawny, which is 

 frequently more or less interrupted in the middle ; under surface 

 black. Legs tawny ; femora black ; tibiae darker than the tarsi. 

 Middle and sides of abdomen sometimes marked with yellowish ; 

 the extremity always black beneath, whereas it is nearly always 

 yellow in G. violacea. Wings yellowish hyaline, with yellowish 

 or fuscous nervures ; extremities dusky ; costa yellow ; stigma 

 dusky, with a large oblique dusky shade below it, as in G. violacea. 



This species more resembles Panzer's figure of G. sylvarum, which 

 is a variety of the female of G. lutea, than any Cimbex at present in 

 the collection of the British Museum. 



Hab. Siberia. 



a. 



2 ■ (Type of species.) Angara. Purchased. 



c. 2- Trans-Baikal. Purchased. 



9. Cimbex japonica. 

 (Plate XYI. fig. 1.) 



Exp. al. 2 poll. 4 lin., long. corp. 1 poll. 



